# The Weighing Equipment (Automatic Catchweighing Instruments) Regulations (Northern Ireland) 2006, Schedule 5: (Prescribed Limits of Error)

Extent: N.I.

(Principle from Clause 2.3 of OIML R51)
The maximum permissible error for any load equal to or greater than the minimum capacity (Min) and equal to or less than the maximum capacity (Max) in automatic operation shall be as specified in Table 1. (Note that the mpe-value includes the digital rounding error of the indicating device.)
Table 1
Load (m) expressed in verification scale intervals (e)
Maximum permissible error for class Y(y) instruments
Class Y(a)
Class Y(b)
Initial verification
In-service
0 <m ≤ 500
0 <m ≤50
±1.5 e
±2 e
500 <m ≤ 2,000
50 <m ≤ 200
±2 e
±3 e
2,000 <m ≤ 10,000
200 <m ≤ 1,000
±2.5 e
±4 e
(Principle from Clause 2.5.2 of OIML R51)
The maximum permissible error for any load equal to or greater than the minimum capacity (Min) and equal to or less than the maximum capacity (Max) for static weighing in non-automatic operation shall be as specified in Table 2.
Table 2
Load (m) expressed in verification scale intervals (e)
Maximum permissible error for class Y(y) instruments
Class Y(a)
Class Y(b)
Initial verification
In-service
0 <m ≤ 500
0 <m ≤ 50
±0.5 e
±1 e
500 <m ≤ 2,000
50 <m ≤ 200
±1 e
±2 e
2,000 <m ≤ 10,000
200 <m ≤ 1,000
±1.5 e
±3 e

---
Source: https://www.legislation.gov.uk/nisr/2006/154/schedule/5 (the official version)
Page: https://openlegislation.uk/weighing-equipment-automatic-catchweighing-instruments-regulations-northern-ireland-2006/schedule-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.